It `x\ a n d\ y` vary inversely, fill in the following blanks: (i) x 12 16 ... 8 ... y ... 6 4 ... 0.25 (ii) x 16 32 8 128 y 4 ... ... 0.25 (iii) x, 9, ..., 81, 243 y, 27, 9, ..., 1

It x\ a n d\ y vary inversely, fill in the following blanks: (i) x ,2, 16, ..., 8 ,... y ,... ,6 ,4 ,... ,0.25 (ii) x ,16, 32, 8, 128 y, 4 ,... ,... ,0.25 (iii) x,9, ..., 81, 243 y,27, 9, ..., 1

If a\ a n d\ b vary inversely, fill in the blanks: (i) a, 8, 2, ..., 5, 1 b, 10, ..., 20, ..., 80 (ii) a, 16, 32, 8, 128 b, 4, ..., ..., 0.5

If a\ a n d\ b vary inversely, fill in the blanks: (i) a, 8, 2, ..., 5, 1 b, 10, ..., 20, ..., 80 (ii) a, 16, 32, 8, 128 b, 4, ..., ..., 0.5

If x and y vary inversely and x=18 when y=8, find x when y=16.

Complete the following tables given that x varies directly as y . (i) x, 2.5, ..., ..., 15 y, 5, 8, 12, ... (ii) x 5 ... 10 35 25 ... y 8 12 ... ... ... 21 (iii) x 6 8 10 ... 20 y 15 20 ... 40 ... (iv) x, 4, 9, ..., ..., 3, ... y, 16, ..., 48, 36, ..., 4 (v) x, 3, 5, 7, 9 y, ..., 20, 28, ...

Fill up the blanks: (i) (x,y) = (3, ..), (....,7), (8, 16), (9, ...), (...., 10), (1, 2) (ii) (x,y) = (....,6), (8,3), (12, ...), (16, 3/2), (....,3/4), (48,....)

In which of the following tables x\ a n d\ y vary inversely: (i) x, 4, 3, 12, 1 y, 6, 8, 2, 24 (ii) x, 5, 20, 10, 4 y, 9, 12, 8, 36 (iii) x, 4, 3, 6, 1 y, 9, 12, 8, 36 (iv) x 9 24 15 3 y 8 3 4 25

In which of the following tables x\ a n d\ y vary inversely: (i) x, 4, 3, 12, 1 y, 6, 8, 2, 24 (ii) x, 5, 20, 10, 4 y, 9, 12, 8, 36 (iii) x, 4, 3, 6, 1 y, 9, 12, 8, 36 (iv) x 9 24 15 3 y 8 3 4 25

Find the equation of the radical axis of the following circles. x^2 + y^2 + 4x + 6y -7 = 0. 4(x^2 + y^2) + 8x + 12y - 9 = 0.

If x=-2\ a n d\ y=1, by using an identity find the value: (4y^2-9x^2)(16 y^4+36 x^2y^2+81 x^4)